Improvement in saws



f delitti uw n l GoT'rLiEB MAULICK, oE- TEENTON. NEW JEEsEY, Assicnon ToV HINISELF AND THMAS P. MARSHALL, O F SAME PLACE. Letters Patent No. 86,850, dated February 9, 1869.`

IMPROVEMENT IN SAWS.

The Schedule referred to in these Letters Patent and makingl parl: of the same.

To all whom it may concern:V

Be it knownthat I, GOTTLXEB MAULIGK Trenton, extending into a recess in the saw-blade, this projec- Mercer county, New Jersey, have invented an Improve tion being V-shaped to fit `a groove made in the hooked ment in Saws; and I do hereby declare the followingto portion of the catch.

turn to a limited extent on the rounded projection i, l

be a full, clear, and exact description of the same. One end of a bentspring, F, is secured to the base. My invention consists in the combination of 'a detachof the catch, the upper end havingla notched projecable tooth with aspring-catch, both beingconstructed, tion, m, adapted to a V-shaped projection, n, on` the and adapted to a recess in the blade, substantially as deedge of the recess in the blade. scribed hereafter, so that the tooth may be readily rel In driving the tooth into its' place, the rounded promoved and replaced,

In order to enable others skilled in the art to make portion oi the projection e of the catch E, thereby. for.- and use my invention,I will now proceed to describe cing the latter back, as shown in fig. 2.

its construction and operation, reference being had to Vhen the lower edge of the base of the tooth, howthe accompanying` drawing, Whichrformjs a part of this ever, has reached the shoulders q q of the recess of specification, and in whichthe blade, the projection e ofthe catch is forced by the Figurel is a side View of my detachablesaW-tooth recoil of the springF into the notchf in the recess of jection p on its base, comes in contact 'with the rounded as it appears when fitted to its place. the tooth, which is thus maintained tightly in its place' Figure 2, a view representing the `spring-catch as by he catch, after moving which back `to the position moved back preparatory to the Withdrawal ofthe tooth. `shown in fig. 2,`by a suitable' instrument, the toothcan Figure 3, a view of thc tooth detached from the blade. be readily withdrawn.

Similar letters refer to similar parts throughout the It will be seen that the tooth, catch, and spring are several views. retained-in their proper position laterally,by a suita A represents part of the blade, and B, the tooth, of ble arrangement of grooves adapted to ribs on theedge which a, is the point, and b, the base, the edges x of of the recess in the blade, and that no rivets tending the latter being parallel, or the base being a trifle wider to Wound or Warp the latter are used.v

above than below. I claim as my invention, and desire to secure by Let- These edges x x have V-shaped grooves, adapted to ters Patent-Q the similarly-shaped ribs on the edges, y y, of. the re- Thedetachahle tooth B with its projection n, the

cess D in the blade. Y catch E, and the spring F, the whole being constructed A recess, d, is cut in the base of the tooth, this re- Iand operating as specified. cess being so formed as to admitthe end of a catch, In testimony whereof, I have signed my name to E, .the latter having a projection, e, arranged to pass this specification, in the presence of two subscribing into a notch, f, which forms a continuation of the re witnesses.

cess d inthe base of the tooth, the end of this notch GOTTLIEB MAU'LIOK. being V-shaped to titthe grooved end of the projection Witnesses y i e onthe catch. RANDOLPH H.- MOORE,

The base, h, of this catch, is so hooked as to fit, and THOMAS P. MARSHALL. 

